Automatic window-sash holder.



I. L. DEIVIPSEY. AUTOMATIC WINDOW SASH HOLDER.

(I I rue/M01 1 a Roman: 5

Patented Dec. 31, 1912.

APPLICATION FILED MAR.30.1912.

3 6 my 4 o. 8 1 m M M w 1 W h ,means also acting when properly set to anonnion.

IRVING L. DEMPSEY, OF GALENA, MARYLAND.

AUTOMATIC WINDOW-SASH HOLDER.

Specification of Letters Patent.

Application filed March 30,

Patented Dee.31,1912.

1912. Serial No. 687,384.

'1 b all whom 2'25 may concern.

Be it known that .l, Invixo L. DEMPSEY, a citizen of the United States residing at Galena, in the county of Kent and State of Maryland, have invented ccrtain new and useful Improvements in Automatic \Vindow-Sash Holders, of which the following is a specification.

My invention relates to sash-holding devices, and particularly to that form of sashholding means wherein the sash-holding roller is carried by the window sash and bears against the frame so as to hold the window in an adjusted position.

The primary object of my invention is the provision of means wlmrcby a window sash may be automatically held at any height to which it is raised and automatically locked every time it is lowered so that it can not'be raised from the outside, sai

tomatically hold the window from going either up or down, as desired.

A further object of the invention is to provide a sash lock which will take the place of weights and cords for holding the window at any desired height, and also take the place of the ordinary sash fastener by automatically locking the sash when it is lowered.

A further object is to provide means for controlling the automatic sash lock so that the lock may be released from engagement 1 with the window frame or set to automatii cally lock the window from going either up l or down and hold the window at anyde-I sired hei ht.

A further object is to simplify. and cheapcn l the construction of sash-holding devices oi; this character. I

()ther objects will appear in the course of the following description.

In the accompanying drawings illustrating my invention: l igurc 1 is a fragmentary perspective view of a portion of a window frame and a window sash mounted therein, the lower sash being provided with my improvement. Fig. 2 is a perspective view of one form of my invention and shows the relh-r support and the controlling means! i l l ior the iroller I'GH'IUVCCl from the window sashd tbie roller support and controlling means being separated. Fig. 3 is a longitudinal vertical section through a portion of a window sash stile showing 1ny.invention applied thereto. Fig. 4.1:; a perspective detail view of a portion of the controlling means, the several parts of the separated from each other. Fig. 5 is a perspective view of another form of my invention.

(Jormsponding and like parts are referred to in the following description and indicated in all the views ot the accompanying drawings by the same reference charactersf The form of my invention shown inFigs. 9, 3 and t, consists of a face plate 2 designed to be disposed upon the inner edge face of the window sash A. and' forming the outer wall ol. :1 smzkct ii. which the operative parts are di-mosed. This face plate is longitudinally slotted as at 3 and has inwardly turned marginal tlanges 't. Slidingly mounted upon the face plate is a roller carrier designated [2 which is approximately U-shaped in cross section and has outwardly turned marginal flanges 6 engaging beneath the flanges 4 of the plate 2.

The side walls of the carrier are slotted r their middles as at 7, and the extremities of the outer edge face of the carrier are provided with ears .8 through which passes a pin 9. Loosely mounted on the pin is a shiltable arm 10, and. disposed between the arm and each car are the coiled compression springs 11.

Mounted in the outer face of the plate 2 an obtusely angled wcdging member 12 whose ends are eonterminous with the ends ate 2 and are riveted thereto. and whose is coincident with the middle of the slot 11 The side walls of the carrier 5 cmbrace this hnzmlmr 12 as shown in Fig. 2 the member is bciig less in width for the grcalcr portion of iis length than the space between the side walls so that the carrier 5 may shift easily ah ng the plate 2. Carried within the carrier ii is a roller 13 whose diamcler is slightlygreatcr than the distance between the inner face of the member 12 at the apex thereof and the outer face of plate 2. The roller is formed with trunnions 14 which project through the slots 7.

The controlling means for the carrier 5 comprises a plate l5 which has a longitudinal slot for a portion (if its length as at 16, and which is attached. at its ends to the inner face of the sash frame A. as shown in Fig. l. The marginal walls of the slot 16 are formed with inwardly proiecting flanges l7. both of which are notched. Disposed within the slot 16 and movaole longitudislide being.

moved in the slot 16, the

'23 is placed in its upper position again nally therein is a slide composed of the two members 18 and 23. The member 18 is U shaped in cross section as shown plainly in Fig. 4, and the outer portion of the member has projecting ends 19 which are formed with laterally projecting ears 20 which enga e over the outer face of the plate 15 on each side of the slot. This member 18 is slotted at its middle as at 21. The member 18 is extended inwardly so as to form the opposed side cars 22 which are curved so that the ears converge toward each other at their middles.

Mounted over the ears 22 and covering the same is a cap 23, the middle portion of the side walls of which are extended as at 25. The ends of .these extensions are out wardly turned so as to form detent teeth 26, the upper edges of which are adapte: to engage with the notches in the flanges 17.

For the purpose of holding the detent teeth into engagement with the notches to permit the detent teeth to be shifted out of engagement therewith, I provide a bowed leaf spring 27 disposed within the cap. The middle portion of this spring bears against the converging cars 22, while the ends of the spring bear against the end Wall of the cap 23, thus acting to force the cap outward and hold the detent teeth 26 in engagement with the notches.

With this construction it is obvious that upon pressing inwardly upon the cap 2%,

the roller in the position shown in Fig. 2,

slide formed by the parts 18 and 23 locked iii-place, the window will be locked from either upward or downward movement ex cept to a very small extent. WVhen it is at tempted to raise the window sash or lower the same, the roller will contact with the window frame and will start to roll in v the opposite direction from that in which the window is being pushed. If there was a rigid connection between the slide formed by the parts 18 and 23 and the roller carrier, it would be impossible for the roller to shift longitudinally, but because of the fact that there is a yielding connection between the finger 10 and the pin upon which it is mounted, it is possible for the roller to shift and in shifting, the roller" will wedge against the window frame and thus the sash be hell from upward or downward movement, the roller wedging into place between the sash and the window frame. This can only occur where there is a space between the sash and the window frame, with the parts in their middle position, and under these circumstances the window will be locked from movement in either direction.

A modified form of my invention is illustrated in Fig. the same principles as the described. In this figure,

form heretofore 28 designates a thr: "detent teeth will be forced out of enfaceplate which is longitudinally slotted as g ge n Wlth the notches 111 flange 17, an at 29, and mounted upon this face plate is upon release fro-m this pressure, the spring 27 will act to force the detent teeth back into engagement.

The arm or finger 10 projects into the slot 21 so that when the slide formed by the cap 2& and the member 18 is longitudinally carrier 5 with the roller therein will be shifted longitudinally along the plate 2. The arm or finger 10 projects into the slot 21 so that when the slide formed by the cap 23 and the member 18 is longitudinally moved in the slot 16, the carrier 5 with the roller therein will be shifted longitudinally along the plate 2. When it is desired to lower the window, the controlling cap 23 is set to its lowest posi-. tion and this will allow the window to be lowered and automatically lock it when it is down. When it is desired to unlock and raise the window again, the controlling cap a casing 30, U-shaped in cross section. This casing 1S longitudinally slotted as at 31'. Disposed within the casing is a roller 32 a pin 33. Mounted upon'the'r'oll er 32 and concentric to the pin 33 is a spur adapted to be engaged by a rack 35 disposed within the casing 30 and being slidablyarranged therein. This rack 35 at its ends has outwardly projecting ears 36 whicheX- tend out through the slot 31 and are enon the outer face of the casing 30. Passing through these cars is the pin 37 upon which is slidingly mounted the finger 38 which corresponds to the finger 10 heretofore described. Surrounding the pin 3? and bearing against opposite sides of the finger 38 are the coiledsprinas 39 which correspond to the coiled springs 11 and have precisely the same function. The finger 38 engages in the slot 21 heretofore referred to as being on the sliding member 18, the same controlling devices'being used with themodification shown in Fig. 5 as with. the form shown in Fig. 2. The operation of this form of my invent on is practically the same as that heretofore described. It will be seen that when the bark 35 is moved upward, "the roller 32"W1Ilf which permits the window to be re sod and automatically holds it to any height to which it is raised. Thus it will be seen that the window can not be raised without being automatically held to any height to which it is raised and that it can not be lowered without being automaticallylocked. If the roller 13 contacts tightly wit-h the Window frame so that the sash and window frame are in close engagement, then with the finger 10 engaging in the slot 21 and the gear 34:

be rotated and will 5 which, however, embodies I 1 which is eccentrically pivoted by means of... l

larged at their terminations so as to bear be forced outward, and

that in this position any upward movement of the window frame will cause the roller to bind and wedge, while any downward movement of the window frame will cause the roller to moveinward. As the rack is drawn downward, the roller will rotate in a reverse direction to that first described and will he again projected, and in this position will wedge upon any upward movement of the window frame, thus locking the window when the window is closed. In this form also if the window sash does engage tightly with the window frame, it is possible for the window to be locked from either upward or downward movement when the roller carrier is in its middle position, and for the same reason as previously described for the form shown in Figs. 2 and It will be seen that my invention is simple, automatic in .its action, that it binds positively against the window frame, and therefore holdsthe sash firmly in position at any height to which it is placed, and that when the window is closed, the sash will be held locked, and that when opened it will be held ipported.

What I claim is:

1. A sash lock including a supporting frame, a loclring roller shiftably mounted therein, hand operated means shitt'table parallel to the supporting ing the roller into a pro ected position, said roller when projected being held from rotation in one direction but having free rotation in the opposite direction,

means forlocking said shifting means in any adjusted position, and a "roller whereby yielding connection between the shifting means and the to permit the shifting of the roller in one direction independently of and without. a correspont ing movement of the hand operated shiftable means.

, ward movement of the 2. The combination with a window frame and a sash, of a locking mechanism coacti'ng therewith and including a roller shiftable longitudinally of the sash to lock the sash either from upward or downward movement, and a manually operable means positively engaging'said roller for movement in either direction, said means being yieldingly connected operatively with said roller whereby the roller may move independently of the manually operable means.

3. The combination with a window frame and a sash, of a sash locking device including a roller moving member, a roller movable thereby into wedging engagementv be tween the sash and frame, said roller when shifted into one position preventing the upward movement of the sash but permitting itsdownward movement, and when shifted into another position preventing the downsash but permitting its upward movement, a sliding hand-actu- 111 and movable frame for shiftnectcd, and. 'means for atedcontrolling member, means for locking the controlling member at any desired po sition, means for operatively engaging the roller moving member with said controlling means, and means permitting a yield ing movement of the rollcrmoving member in either direction with relation to the controlling means.

4. A sash lock including a face plate, an obtusely angled strip arching over the rear of the face plate, a roller carrier mounted on the face plate and embracing said strip, said carrier being longitudinally movable upon the face plate, a roller,supported there ouhvardly, said roller contacting with the angular strip, a finger mounted on the roller carrier and yieldingly connected thereto, and a hand operated controlling device with which said linger is engaged.

5. A sash lock nichuling a slotted face plate, an obtusely angled strip arching over the rear of the face plate, a roller caiTicr mounted on the face plate and embracing said strip, said carrier being longitudinally movable upon the face plate, a roller supported therein and nio'vable outwardly, said roller contacting with the angular strip, a finger enacting with the roller carrier and yiel'dingly connected thereto, a hand operated slide with which said finger is conlocking the slide in any adjusted position, said slide acting to shift the roller carrier to cause the roller to be projected.

6. A sash lock including a slotted face plate, an obtusely angled plate extending longitudinally over the slot, a roller carrier embracing said strip and shiftable along the face plate, a roller mounted in the carrier and freely movable outward ordnward at right angles to the face of the plate, a finger mounted on the carrier and vertically movable relative thereto, springs disposed on each side of said finger and yieldingly holding the finger in a mid position, hand actuated means for shifting said carrier engaging said linger. I

7. A sash lock including a slotted face plate, an obtusely angled strip extending longitudinally over the slot, a roller carrier embracing said strip and shiftable along the face plate, a roller and freely movable outward or inward at right angles to the face of the plate, said roller contacting with the inner face of the strip, ears on the carrier, a iin extending between said ears, a finger slidably mounted upon the pin, opposed compression springs located between the finger and the ears, and hand actuated means for shifting said carrier engaging the finger.

sash lock including a slotted face plate, an obtusely angled strip extending longitudinally over the slot, a roller carrier mounted in the carrier posed pin operatively carried by the roller able thereby into wedging engagement benoeaese 10. A sash'lock including a face plate, an obtusely angled strip arching over the rear of the face plate, a roller carrier mounted on the face plate and'embracing said strip, said carrier being longitudinally movable upon the face plate, a roller supported therein and movable outwardly, said roller contacting with the angular strip, a finger'mounted on the roller carrier and yieldingly connected thereto, a plate having a longitudinal slot formed with notched margins, a slide moving in said slot and operatively engaged with the finger, a cap engaging over the slide and resiliently urged outward, and detents carried by the cap and engaging the notched margins of the slot to hold the slide in any adjusted position.

11. A sash lock including a slotted plate, an obtusely angled strip supported upon the rear of the face plate and extending longit'udinally over the slot, a roller carrier embracing said strip and shiftable along the plate, a roller mounted in the carrier and freely movable outward or inward at right angles to the face of the plate, and hand actuated means for shifting said carrier.

In testimony whereof I afliX my signature in presence of two witnesses.

IRVING L. DEMPSEY, [Ls] Nitnesses:

J. D. YOAKLEY, l nnnniuo B. Nnren'r.

embracing said strip and shiftable along the plate, a roller having trunnions mounted in slots in thec'arrier and bein thereby freely movable outward or inwarf to the face of the plate,'said roller being in contact with the inner face of the strip, opposed ears on the carrier, a pin extending between the ears, a finger slidably mounted on the pin, opposed compression springs disposed between the finger and said ears and acting to hold the finger ,in amid position, a slide with which said finger is connected, and means for locking the slide in any adjusted position. v r

9. The combination with a Window frame anda sash, of a sash locking device including a roller moving member, a roller movtween the sash and the frame, said roller when moved into one posi ion preventing the upward movement of the sash but permitting its downward movement, and. when shifted into another position preventing the downward movement of the sash but permitting its upward movement, a vertically dismoving member, a finger longitudinally slidable on the pin, opposed springs disposed on each side of the finger, a sliding hand actuated controlling member connected to said finger, and means for locking the controlling member at any desired position. 

